From NOIR:
This is the story of two siblings, Joo-won and Hee-won, and one man determined to take Hee-won's heart. Both of Joo-won and Hee-won feel isolated after their parents separate due to infidelity and remarry, placing both of them in new families. However, Hee-won's new step brother,Min-hyuk, notices Hee-won's suffering. Is he determined to take care of her, or is there something more?

From Shoujomagic:
Ayane's seventeenth birthday may very well be the worst day of her life. From the moment she opens her eyes in the morning, it just goes from bad to worse. The crowning glory is when she throws a beer in the face of a man whom she only realizes later is her favorite musician, the wildly popular Shiina Etsurou. Ayane loves to sing, and she's really good at it, but fate seems dete...

From Wikipedia :
Futakoi Alternative tells the story of Rentar? Futaba and his detective agency. One day a set of twins, Sara and S?ju, show up at his doorstep. They move in with him and work as secretaries for his agency.
Classifying Futakoi Alternative as a specific genre is extremely difficult, although at its core, it is most similar to a romantic comedy. The first handful of...

Jigoku
Katsuhiko and Youji were finally together, but Youji got into a car accident and was sent to a hospital. In order to ensure a successful operation, Katsuhiko’s forced to give ‘special service’ to Doctor Ninomiya…
This book is about our charming and passionate couple, Katsuhiko and Youji.
Sweet Home (KAYAMA Yumi) (Sequel)

From Liquid Passion:
Aizome Riku enjoys napping on the school's roof, but when he falls from a tree tryng to climb down Kairi is there to catch him. The two become fast friends, but Kairi's three bodyguards who follow him everywhere soon grate on Riku's nerves. Can Kairi convince Riku that his 'like' is more than friends and capture his would-be uke's heart?

Serika, a blunt and socially inept high school girl, has never had a friend before. However, she does have a boyfriend or at least she thinks she does. So what does she do? She takes a dump in the bathroom her boyfriend Nao plays games in and sprays him with blood. Why? Because that's what lovers do. The hilarity ensues as she learns the meaning of friendship and human interaction.
Baka-Updates...

Continuation of the story of Chihiro and Keigo from Harete Bokutachi wa.
From Baka-Updates:
After declaration of love from both. Now Chihiro and Keigo have started dating... but really what is the difference between bestfriends and boyfriends. Will the two of them learn in time the difference between friendship and love! Well not to mention jealousy...

Welcome to The World, the most advanced online game ever created. Fourteen-year-old twins Rena and Shugo are two middle-school students who enter The World as level-one game characters--and now they're ready to take on anything...or so they think. When Shugo's character dies, he is transported to another level where he is entrusted to bear the Twilight Bracelet by the mysterious Aura. Shugo must f...

From Adachi's Universe:
Slow Step follow the adventures of schoolgirl Minatsu as she looks for a man and tries to stay on top at school. She's got the school bully to worry about, two potential suitors, a pervert for a PE teacher, and a gang of criminals in hot pursuit.

From Thomas Wang’s homepage:
A very powerful industrialist directs his daughter to pick a husband from three candidates he has chosen for her. They are to come into her life, and their uniqueness would cause her to recognize them immediately. All three of the candidates are outstanding. Well, it’s actually four...
The story evolves along the lines of a power political mystery involving a small m...

From Ivyscan
“It is said, there are other worlds than the one we live in… One of them is the fairy world.”
My parents divorced when I was very young. I didn’t even remember what my father looked like. When I turned 14 years old, Mom finally let me go to Dad’s place. But what I found there wasn’t Dad, but a young man and a garden full of fairies, just like in Dad’s paintings…

[From .hack//Wiki]
Raid, a newbie Edge Punisher in The World R:2 decides to sell all of his gear and items in order to buy a rare sword. Unfortunately the sword draws the attention of a group of PKers who decide to kill him and steal the sword for themselves. Dead, naked, and penniless it seems that it's all over for Raid, when he is suddenly saved by a group of players from the Seventh Divisio...

From Fantagraphics Books:
Fifth grade. The threshold of puberty, and the beginning of the end of childhood innocence. Nitori Shuichi and his new friend Takatsuki Yoshino enjoy happy homes and loving families, and are well-liked by their classmates. But they share a secret that further complicates a time of life that is awkward for anyone: Shuichi is a boy who wants to be a girl, and Yoshino is ...

Generally..... a story about really cute guy trying to hook up with this really egoistic girl... although its not really like that^^
By EvilFry
A guy falls for a girl who is out of his reach/from a different class. He plies her with gifts... but will these win her affection?
This is a an amusing tale with a wonderful twist.

From ShoujoMagic:
Yumi is a college sophomore. She's going out with Kouta, who's in her same circle. Just when she's been taken in by Kouta's boyish manner... she gets pregnant. What will become of Yumi and Kouta, who worry that they can't have this child...?

From Fateful Encounters:
Four years ago, Prince Lulnavul fell into an eternal sleep due to an unknown curse. The king then made a proclamation: whoever wakes the prince will receive any reward they choose...but up until now, not one has achieved it. Now, Witch Sayla, scorned by the outside for being a witch, attempts this task as the 99th contender, not for the sake of the prince's hand in marria...

From Amazon:
This book contains three separate and unusual stories set in alternate realities. The first story, "Martian's Earth Conquest," tells the tale of a person who is coping with the loss of someone special. The second tale, "Is it Really Not Possible?," makes you wonder if a man and a woman can truly be just friends. And the last of the three, "Sci-Fi," is a ...

On a rainy Friday, Yayoi makes an effort to go to the store to get a new pair of glasses. With her poor eye sight she ends up bumping into a guy who is soaking wet and this guy ends up helping her get to the store. He runs off quickly and Yayoi is unable to thank him. From that day onwards she labels him as Mr. Friday and has him constantly on her mind. Now her life is filled with wonder and quest...

A collection of one-shots:
? Sleeping Beauty no Mita Yume (Sleeping Beauty's Dream)
Tsukasa gets a kiss from the girl she likes, but she's not happy about it.
? Hakushi (Blank)
The protagonist loses some of her memories and can't remember a girl who was very important to her.
? Rokujouhan Shuukai Okure
? A Witch's Hand
? 20, 21
Fuji doesn't see her friend Asagao in a romantic lig...

From Stiletto Heels:
Yukari was enjoying her single life when her elder twin sister, Ayaka, suddenly pays her a visit to ask her for some strange advice, and brings along a guy she met in Hong Kong with her! This is a story about a set of mismatched twins.

The young tenor singer Dimitri miraculously escaped with his life after a severe accident. But soon after that, strange cases of group-suicides started to happen all around him… A vampire tale of love and survival!